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Astronomers are puzzling over a paucity of planets in the galaxy measuring between 1.5 and two times Earth’s size.
A new experiment confirms the existence of “superionic ice,” a bizarre form of water that might comprise the bulk of giant icy planets throughout the universe.
The stunning emergence of a new type of superconductivity with the mere twist of a carbon sheet has left physicists giddy, and its discoverer nearly overwhelmed.
The astrophysicist Janna Levin reflects on the newly unveiled, first-ever photograph of a black hole.